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Spoiler warning: Plot or ending details follow.

The Formidable Oak is the final area of Pikmin 3. It is where the final boss is fought, the Plasm Wraith. The area requires the use of all five Pikmin types discovered over the course of Story Mode. Most of the map is a massive cave system through which the Plasm Wraith chases the player. As all leaders and Pikmin are already available upon accessing the area and there is no fruit to collect, it is the only area that is possible to complete within a single day.


The Formidable Oak is a large termite nest built around a tree stump found in a desert/steppe climate. The landing site for the Drake and Onion is the actual stump. A large ramp wraps around the nest, leading to the top, which contains a large hole from which one can access the cave system, the largest one in Pikmin 3. At first it boasts much biodiversity, having a large variety of enemies, including some enemies that are found nowhere else, such as the Watery Blowhog and the Shearwig, as well as all known species of Candypop Buds in Pikmin 3. However, when enemies are defeated, they explode into plasm, revealing that they are merely illusions created by the Plasm Wraith; the sole exception is a Nectarous Dandelfly. South of the landing site is an arena where the captains fight the Plasm Wraith after navigating the cavern. Interestingly, there are stones laid on the ground of the arena which form a pattern similar to the islands near the Smoky Progg's egg from the Distant Spring in Pikmin.


* Plasm Wraith illusion

Plants and Fungi[]

Pikmin Drawings[]



  • This location's continental shape appears to be designed after Greenland's.
  • This is the only level in which Shearwigs and a Watery Blowhog appear in Story Mode. However, since they are just illusions created by the Plasm Wraith, it could be said they do not appear in Story Mode at all.
  • The music which plays outside during rain is similar to the music which plays at The Final Trial.
  • Because every creature here is an illusion, it could also be said that the only creatures here are a Nectarous Dandelfly and the Plasm Wraith. 
  • It is possible to get out of bounds here, making it so the player can go through the cave backwards. This makes it much easier to retrieve Captain Olimar and complete the game faster. However, actually having a captain climbing to the top of the Oak where the Plasm Wraith is first encountered from the inside of the cave will cause a severe game-breaking sequence of displaced camera positioning and unused cutscenes.
  • Although it is said to be a tree, this level is actually one of several termite hills on this desert continent. Other hills like this can be seen in the background.
  • To completely finish the maze (Including Data Files), the only Pikmin required are Yellow Pikmin and Rock Pikmin. However, other Pikmin types are recommended for convenience. 
  • The area where the Plasm Wraith is fought has a similar pattern on the ground as the area where the Smoky Progg egg is found in The Distant Spring.
  • By using the camera to look upward, the player can notice that the cave inside the Oak has no roof.
  • When fighting the Plasm Wraith, the Koppai map can reveal an enemy marker off the map of the Formidable Oak. It is still, however, unknown if there is an actual enemy off the map or if it's just a glitch.
The Impact Site | The Forest of Hope | The Forest Navel | The Distant Spring | The Final Trial
Pikmin 2
Valley of Repose | Awakening Wood | Perplexing Pool | Wistful Wild
Pikmin 3
Tropical Wilds | Garden of Hope | Distant Tundra | Twilight River | Formidable Oak
Pikmin 4
Rescue Command Post | Sun-Speckled Terrace | Blossoming Arcadia | Serene Shores | Hero's Hideaway | Giant's Hearth | Primordial Thicket